Changes

===Renal Control===

===Renal Control===

* Potassium ions are reabsorbed and secreted at different points along the nephron

* Potassium ions are reabsorbed and secreted at different points along the nephron

* Active reabsorption of potassium occurs along the [[Proximal Tubule - Anatomy & Physiology| proximal tubule]] (70%) and along the ascending limb of the [[Loop Of Henle - Anatomy & Physiology| Loop of Henle]] (10-20%)

* Active reabsorption of potassium occurs along the [[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology|proximal tubule]] (70%) and along the ascending limb of the [[Reabsorption and Secretion Along the Loop of Henle - Anatomy & Physiology| Loop of Henle]] (10-20%)

* This results in there only being 10% of the original amount left in the distal tubule

* This results in there only being 10% of the original amount left in the [[Reabsorption and Secretion Along the Distal Tubule and Collecting Duct - Anatomy & Physiology#Distal Tubule|distal tubule]]

* However net reabsorption / secretion of potassium occurs in the distal tubule and first part of collecting duct

* However net reabsorption / secretion of potassium occurs in the distal tubule and first part of collecting duct

** Depends on bodies need

** Depends on bodies need

* Under the influence of [[Aldosterone]]

* Under the influence of [[Important Hormonal Regulators of the Kidney - Anatomy & Physiology#Potassium|Aldosterone]]

* This is where the amount of potassium excreted is determined

* This is where the amount of potassium excreted is determined

* Reabsorption occurs in the final part of the collecting duct

* Reabsorption occurs in the final part of the collecting duct